On Friday, January 11, 2013 3:30:26 PM UTC+8, debo...@2pirad.com wrote:
>
> Because, to process the request object (in #7), the methods which are 
> present in the google protobuf generated file are called. The protobuf 
> request object contains multiple requests, and the time taken to extract 
> these (requests) is gradually increasing with time.

Do you have a running code example to prove this? Have you checked that if 
the received object is getting larger and lager? Or maybe your program is 
consuming more and more memory as it's running?
 

>
> I think this is protobuf problem because these classes where generated by 
> the protobuf compiler (from the .proto file). 
>
>
> On Friday, January 11, 2013 12:41:35 PM UTC+5:30, Feng Xiao wrote:
>>
>> What makes you think it's protobuf's problem?
>>
>> On Friday, January 11, 2013 2:50:54 PM UTC+8, debo...@2pirad.com wrote:
>>>
>>> My application uses Google Protocol Buffer with Apache MINA. There are 
>>> clients who connect to the MINA Connector, send request to the server and 
>>> then wait for the response from the server. The flow of control is as 
>>> follows:
>>> 1. Client sends request
>>>     2. Request received at MINA filter (<Class> 
>>> extends CumulativeProtocolDecoder)
>>>         3. doDecode() method is called
>>>             4. A request object (generated from *.proto file) is created 
>>> using the <RequestObject>.parseFrom(bytes)
>>>                 5. The request is passed on to the IOHandler (<Class> 
>>> extends IoHandlerAdapter)
>>>                     6. messageReceived() method is called
>>>                         7. In this method, the request object (from #6) 
>>> is processed to create the list of requests which has been sent by the 
>>> client. 
>>> *                        8. At this point, we have noticed that the 
>>> time taken to process the request object (#7) is gradually degrading with 
>>> time. From a initial period of around 2 ms, the time period is going up to 
>>> 200 ms in just 8 days of continuous usage. And this value gradually 
>>> increases with time.*
>>>                             9. The request list is processed in the 
>>> application
>>>                           10. The response object is created
>>>                       11. The response is sent to the client.
>>>
>>> Any suggestion would be highly appreciated.
>>>
>>

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